The leu opened at 4.236/4.238 against the euro, stronger than 4.244/4.245 at versus the euro at closing Friday.
Within the first hour, the leu continued to gain ground and, at around 10:00 local time, it was trading at 4.2355/4.237 to the euro.
The central bank computed Friday a leu to euro reference of 4.2449 units, the strongest position the leu has seen against the euro in three weeks.
Overnight rates eased down Monday, to 5.75%-6.25% a year, from 5.82%-6.32% a year Friday.